Granted Patent
Utility
US 4,730,063 · App. 06/938,199
Alkali metal 2,5-dihydro-3-ethoxycarbonyl-2-[(substituted phenyl)amino]-4-furanyloxides
Inventors:
Vassil S. Georgiev, Clyde R. Kinsolving, Robert Mack
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Dec 5, 1986
Inventors
Vassil S. Georgiev
Clyde R. Kinsolving
Robert Mack
Assignee (at issue)
Pennwalt Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.